With them, it's all Iron Man this, Olympics that. And now Michael's sister Whitney is about to run the New York City Marathon on Nov. 4 while his other sis Hilary takes on the 5K.

Remember all of those Olympic events where Debbie Phelps cheered on Michael, flanked by Hilary and Whitney? Well, come marathon morning, Michael says he'll be trying out the cheering position, rooting for Hilary and Whitney.

"It's something I enjoy, being able to be there for my family and my sisters," he told Glamour magazine. "I love being able to watch them get out there and have fun and try to accomplish their goals."

The other day at a pre-marathon photo shoot in New York, Michael and his sisters took a dip in the pool and then the Olympian faced off against Whitney on the track. She won. This week, the two shared some of their training tips with Glamour.

Whitney's tip: To avoid a training slump, change your scenery with a new route or a new place to start the run. She likes to plan something fun for after the run -- like brunch with friends -- as an incentive. "Whatever you have to do, just finish," she told Glamour.

Michael's tip: Get in the zone with music. "Just have fun, that's the biggest thing," he told the magazine. "As long as you're smiling and having fun that's all that matters."

There's more to Michael Phelps than medals and chlorine. We know, you're wondering, "But, what?" We scoured the Olympian's Twitter account, mining it for mentions of what, besides making history, gets him going. We present a fairly comprehensive list of Michael Phelps' favorite things. And...

Michael Phelps, it seems, has a girlfriend: Megan Rossee. The tabloids are singing it from the rooftops. She's calling him "bear" on Twitter. And Monday night, the new couple walked arm-in-arm down a red carpet in London. She's a 25-year-old Los Angeles model/cocktail waitress. She's apparently...